The invention, which belongs to the technical field of electronic products, provides a network cable tester with a sound recorder, which comprises a shell and a built-in power supply. The shell is internally provided with a cavity; the inner side of the cavity is provided with a rectangular jack connected with the power supply; the cavity is internally provided with a matched sound recorder provided with a rectangular plug matched with the rectangular jack; the shell is provided with a switch connected with the rectangular jack; the switch is provided with a working indication lamp; and one side of the cavity is provided with a rubber strip. According to the scheme of the invention, the network cable tester has a function of recording related data by adopting a sound recording method, and assembly and disassembly are convenient; and due to the preferable switch clip, and the rubber strip, mounting and use are more convenient, and the working state of the sound recorder can be intuitively recorded.